Web service Http 500 err: unrecognized request format

Hi all gurus,
some days ago my IIS5 (XpPro SP2) had stopped working; since then I have
deinstalled all HotFix, then SP2, then .NET Framework 1.1, then IIS 5,
then reinstalled IIS5, SP2, all proposed WinUpdates, then IIS5, then
..Net Framework, then have run aspnet_regiis /i, ended with no errors.
ASP.NET apps run correctly, while web services not, ending with a
"HTTP500 - internal server error". Update key brings up an error:
[InvalidOperationException: Formato della richiesta non riconosciuto.]
(unrecognized request format ?)

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Hi all,
I've performed some narrowing; simple web service like "Hello world"
works well, but when I try to return a filled dataset thru a web
service, I get the error. The same service has worked unchanged from
about three month till some days ago. Of course, I made no change. Any
clue?

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"tesis" <> ha scritto nel messaggio
news:%...
>
>
> Hi all,
> I've performed some narrowing; simple web service like "Hello world"
> works well, but when I try to return a filled dataset thru a web
> service, I get the error. The same service has worked unchanged from
> about three month till some days ago. Of course, I made no change. Any
> clue?
>
> *** Sent via Developersdex http://www.developersdex.com ***

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